Farm Progress is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Serving: East

Researchers Find Genetic Marker for Swine Litter Size

Scientists with USDA's Agricultural Research Service have found a genetic marker that could help producers select for larger litters.

Scientists at the Agricultural Research Service's U.S. Meat Animal Research Center in Clay Center, Neb., have found a genetic marker for increasing litter size in pigs. This can help producers select for pigs that would produce more piglets, boosting efficiency.

Jeffrey L. Vallet and his colleagues found a strategically located single nucleotide polymorphism that appears in studies to be associated with litter size. SNPs are genetic variations that can be used in breeding programs to keep track of an animal's genetic value.

Vallet and geneticist Bradley A. Freking have developed an assay to detect the SNP in individual sows. The ability to quickly identify the beneficial SNP allele could one day allow breeders to select sows with improved uterine capacity and litter size, thus increasing production efficiency.

Source: ARS release

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.